[gtk] (16 commits) ...Merge branch 'abolish-size-allocate' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  77ffc1f... keymap: Remove leftover code (*)
  91d261a... window: Remove some outdated info from the docs (*)
  6c8f5f9... treeview: Cosmetic change (*)
  7280618... cellarea: Cosmetics (*)
  0aec11f... a11y: Avoid a gratitious use of ::size-allocate (*)
  e4894a6... drawingarea: Add a ::resize signal (*)
  cad890e... gtk-demo: Use GtkDrawingArea::resize (*)
  b21a027... examples: Use GtkDrawingArea::resize (*)
  92bcf4c... inspector: Stop using ::size-allocate (*)
  82e9258... tests: Stop using ::size-allocate (*)
  cb94c7d... Explicitly update widget a11y bounds when allocating (*)
  1f0024a... tooltip: Add private api to allocate the window (*)
  3872da5... tooltipwindow: Drop some dead code (*)
  64b6738... tooltipwindow: Stop using the ::size-allocate signal (*)
  56e590b... widget: Drop the ::size-allocate signal (*)
  8239186... Merge branch 'abolish-size-allocate' into 'master'

(*) This commit already existed in another branch; no separate mail sent